On the Antiquities of Prussia

...in both males and females, horns sprout just like their manes; they are of the same shape and size for both, and in color and appearance they are not unlike the bull. Some from this breed are said to be unicorns, though whether this is true or not, I have not discovered. Pliny, however, wrote that Indian wild oxen are unicorns and three-horned; because of this, it does not seem inconsistent that they should be born in another place, although it must be suspected that they are of a different kind from the Bison. Such, perhaps, is the horn which is kept intact today in the Archive of the Master General and is asserted to be that of a Monoceros, although it is black, whereas this one is seen to be yellow. In that region, there are also herds of wild horses, which Greece and Rome never saw, and for this reason they cannot be called by any other name. These exist exactly like tame horses, except that their backs are softer, and for that reason, they are not fit for use. They say that they cannot be tamed at all. The inhabitants consume their meat even today, which they claim is not unpleasant. It also produces the Elk (which some falsely deem to be wild asses, when only Asia and Africa produce those), in appearance midway between a deer and a beast of burden, except for the length of its ears and the neck itself, which distinguish it. In size it is between a camel and a deer; in the males, horns grow upon the brows, which they shed every year, wider than those of a deer, yet branched, and throughout consistent and solid. The hooves are cloven, and it imitates the deer in color. It senses the hunter from afar; it is certainly a simple animal, and one that trusts more in hiding than in flight—